From: Marko Kreen <markokr@gmail.com>
Date: Thu, 2 Aug 2007 11:56:28 +0000 (+0000)
Subject: avoid recv() if buffer has data
X-Git-Tag: pgbouncer_1_1~66
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7e60d6ab661facc5f1cd16b79b75f553605f2e54;p=pgbouncer

avoid recv() if buffer has data
---

diff --git a/src/sbuf.c b/src/sbuf.c
index a08a60c..40eb41a 100644
--- a/src/sbuf.c
+++ b/src/sbuf.c
@@ -175,11 +175,19 @@ void sbuf_pause(SBuf *sbuf)
 /* resume from pause, start waiting for data */
 void sbuf_continue(SBuf *sbuf)
 {
+	bool do_recv = true;
 	AssertActive(sbuf);
 
 	sbuf_wait_for_data(sbuf);
 
-	/* FIXME: > SMALL_PKT in buffer, skip the recv() ?? */
+	/*
+	 * FIXME: is it safe?
+	 *
+	 * if avail > SMALL_PKT in buffer, skip the recv().
+	 */
+	if (sbuf->recv_pos - sbuf->pkt_pos >= SMALL_PKT)
+		do_recv = false;
+
 	/*
 	 * There may be some data already received,
 	 * but not certain, so avoid SKIP_RECV.